Arghya Chattopadhyay


Topological toolkit & complexity for higher spin gravity


Nicolas Boulanger(PI) and Andrea Campoleoni(co-PI)

Research center

Université de Mons

Research start date



Chern-Simons (CS) theory is the simplest example of a topological field theory which does not have any propagating degrees of freedom. Remarkably, extending higher spin gravity (HSG) theory in four dimensions by introducing more gauge symmetries but keeping the local degrees of freedom fixed, one can have a natural generalization of CS theory in higher dimension, referred to as the Frobenius-Chern-Simons (FCS) theory. One of the objectives of this project is to generalize the equivalence of ordinary CS theory and topological open string theory for FCS theory. On the other hand, HSG theories are also conjectured to be dual to one lower dimensional field theories where the notions on computational complexity are well understood. This project will probe further into HSG theory both by developing an approach to four-dimensional field theories employing tools from topological field theory, and by studying holographic notions of computational complexity in three dimensions.


BSc  and MSc in Physics from Visva-Bharati university, Shantiniketan, India.

PhD in Physics from Indian Institute of Science Education and Research Bhopal (IISERB), India.

Former Postdoctoral fellow at The Institute of Mathematical Sciences Chennai, India.

Former Postdoctoral fellow at the University of the Witwatersrand, Johannesburg, South Africa.


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Arghya Chattopadhyay


31 years old



Contact email



This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska Curie grant agreement No 101034383

Caroline Vliegen

C2W Project Manager

Place du Parc, 22 |7000 Mons |Belgium